What I've read suggests you'll need a couple of packs of 6-OXO after a 6-week cycle to be taken:
W1: 6 per day
W2: 4 per day
W3: 3 per day
W4: 2 per day and maybe same again for another couple of weeks depending on progress.
I suggest you do some searches on google but that's pretty much what I found. For a three to four weeks cycle you should be able to manage with one pack.
You should proabably think about getting in the likes Milk Thistle and ALA to help your liver.